diff --git a/EGkSurfBezier.h b/EGkSurfBezier.h
index c79ff3a..a53a772 100644
--- a/EGkSurfBezier.h
+++ b/EGkSurfBezier.h
@@ -123,7 +123,9 @@ inline ISurfBezier* GetSurfBezier( IGeoObj* pGObj)
 
 //----------------------------------------------------------------------------
 EGK_EXPORT void SetSurfBezierAuxSurfTol( double dTol) ;
+EGK_EXPORT double GetSurfBezierAuxSurfTol( void) ;
 EGK_EXPORT void SetSurfBezierAuxSurfRefinedTol( double dTol) ;
+EGK_EXPORT double GetSurfBezierAuxSurfRefinedTol( void) ;
 
 //----------------------------------------------------------------------------
 // Raccolte di puntatori a ISurfBezier
diff --git a/EInAPI.h b/EInAPI.h
index ce16a3b..4fcd7d9 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -1043,6 +1043,8 @@ EIN_EXPORT BOOL __stdcall EgtSetShowCurveDirection( BOOL bShow, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtGetShowCurveDirection( void) ;
 EIN_EXPORT BOOL __stdcall EgtSetShowTriaAdv( BOOL bAdvanced, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtGetShowTriaAdv( void) ;
+EIN_EXPORT BOOL __stdcall EgtSetShowSurfBezierTol( double dLinTol, BOOL bRedraw) ;
+EIN_EXPORT double __stdcall EgtGetShowSurfBezierTol( void) ;
 EIN_EXPORT BOOL __stdcall EgtSetShowZmap( int nMode, BOOL bRedraw) ;
 EIN_EXPORT int  __stdcall EgtGetShowZmap( void) ;
 EIN_EXPORT BOOL __stdcall EgtZoom( int nZoom, BOOL bRedraw) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 44a682b..25a0cb5 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -1379,6 +1379,8 @@ EXE_EXPORT bool ExeSetShowCurveDirection( bool bShow, bool bRedraw) ;
 EXE_EXPORT bool ExeGetShowCurveDirection( void) ;
 EXE_EXPORT bool ExeSetShowTriaAdv( bool bAdvanced, bool bRedraw) ;
 EXE_EXPORT bool ExeGetShowTriaAdv( void) ;
+EXE_EXPORT bool ExeSetShowSurfBezierTol( double dLinTol, bool bRedraw) ;
+EXE_EXPORT double ExeGetShowSurfBezierTol( void) ;
 EXE_EXPORT bool ExeSetShowZmap( int nMode, bool bRedraw) ;
 EXE_EXPORT int  ExeGetShowZmap( void) ;
 EXE_EXPORT bool ExeZoomRadius( double dRadius, bool bRedraw) ;